plot.gps.grids(corn.2013.dat, swath.width = 12.6, plots=0,residuals=TRUE)
## Warning: Using `size` aesthetic for lines was deprecated in ggplot2 3.4.0.
## ℹ Please use `linewidth` instead.
plot.gps.grids(soybean.2014.dat,plots=0,residuals=TRUE)
plot.gps.grids(corn.2015.dat,swath.width = 12.6, plots=0,residuals=TRUE)
plot.gps.grids(soybean.2016.dat,plots=0,residuals=TRUE)
plot.gps.grids(corn.2017.dat,swath.width = 12.6,plots=0,residuals=TRUE)